Answer:
2,664
Step-by-step explanation:
We know this is correct because if we were to estimate
40 x 70 it gets us 2,800 and 2,664 is close to that.
22
Explanation: 10+3=13 13+4=17 17+5=22
6ac+10ac
2ac(6ac+10ac)
2ac(3+5)
